Bung.



UNITED {STAT-Es CHRISTOPHER srRitssHnIM; or CHICAGO, ILLINOis;

BUNG.

srsoIrIcArIoN forming part `of Letters Patent no. 654,858,01ata Tuy 31, ieoo.

Application filed January 8,1900. Serial No. 66'?. (No model.) Y Y To all whom t may concern:

Be it known that I, 1 OHRISTOPHER STRASS- HEIM, a citizen of the United States, residing at Chicago, in the county of` Cook and State of Illinois, haveinventeda new and useful Improvement in Bungs, of which the following is a specification.

My invention relates to .an improvement in the class of bungs for barrels and analogous liquid-holders requiring to besealed by bungi ingin which a key-controlled plug is adjust-- ably'screwed ina sleeve'adapted to be con# tained in the bung-hole or bushing therein, and carrying externally a packing-ring of rubber or other suitable material compressible for expanding it, toseal the bung-hole, by a binding the packing-ring about the inner edge of the bung-hole.

My further object is to materially simplify the construction'of bun gs in the class referred to by way of accordingly reducing the cost of manufacture, enhancing their, effectiveness, and facilitating theV assemblage and separa'- tion of the parts.

Referring tothe accompanying drawings,

Figure -l represents, by a vertical section taken at the line 1 on Fig.f 3 and viewed in the direction of the arrow, my improved bung in place, with the operating-key above it, and showing the parts in their relaxed condition, in which the bungis adapted to be introduced into and withdrawn from a bung-hole. Fig.` 2 is a similarview of the same, showing the key in position and the parts of the bung in their tightened condition, in which they spread the sealing-ring outward against the wall ofthe bung-hole. Fig. 3 is a plan view of the bung; Fig. 4:, a plan section of the key, taken at the line et on Fig. l and viewed in the direction of the-arrow; Fig. 5, a perspective view of the plug; Fig. 6, a section of the bung, takenat the line 6 on Fig. 1 and viewed in the direction of the arrow;` and Fig. 7, a section of the bung, taken at the line 7 on Fig. 1 and viewed in the direction of the arrow. A denotes the bilge of a barrel or analogous vessel containing a bung-hole A', which maybe equippedwith a suitable metal or other bushing in which to seat my improved I3bung, though no', bushing is show n, as the bung may be usedwithoutit.I

l 'Bis aninternally-threaded imetal sleeve, `preferably of ythe' cup shape shown, whereby itis provided with a roundedA base and having a iiange d about its Outer end, where it lseats in' a recess a` in the Acorresponding end of the bung-hole. f

C is `the plug, formed with a solid metal body screw-.threaded externally to screw into the sleeve B and provided on its outer end with a central 'key-stud b, about which extends, to forni a circular socket c for the operating end of the key D, a flange d, provided with a radial slot e, from" Vone side of which there extends in the innerside of the flange a short arc-shaped recess c', forming an outward extension of the socket c under the ia'nge. On the inner end Vof the plug is formed a tubular extension f, provided at its extremity withV an inward-extending iiange f and having formed in one side a T-shaped lslot g, the stem or narrower portion of the slotextending through the {iange f and the ,wider portion of the slot extending through `the bodyV of the tubular extension.

' i E is a disk-shaped ccmpression-plate provided with a central neck h', terminating in la head h, shown in the preferred form of a disk. The diameter of the neck is such as to admit it through the narrower portion of the slot' g into the interior of the tubular extension f, and the diameter of the head h is such as to admit it into the same through the enlarged portion of the slot, and the head is loosely confined by the flange f within the tubular extension, whereby the plug C may be turned in the sleeve B without turning the compression-plate.' 1

F is a rubber sealing-ring which conforms to the shape of the rounded bottom of the ing interposed between it and the plate E.

The key D has a socket(indicated at fi) extending into its stem from the lower end IOC) struction of bung, the plug C is Vscrewed, (by

turning it toward the right) into the sleeve B tillthe tubular extension f projects beyond Then the plate the inner end of the sleeve. E, with the rubber ring F upon it about the neck h and head h, is applied to the base ofn the sleeve (again'st'whichthe wider edge yot the ring is thus caused tobear) and the -plateg is tilted to bring the n eck and head outsidevv the plane of the. slotV g, whereby righting the plate will introduce the neckrand head through the T-slot into the'interior ofthe tubular extension f, wherein the head is confined, as aforesaid, by the flange f. Y

It is obviously a simple matter to takethe bung apart for repairing, cleaning, and other purposes by bending over or downward the edgeof the rubber ring to ascertain or providing a mark to indicate the position of the slot g, through which the head and neck on the compression-plate may be forced to sepaf `rate the plate and ring from the sleeve,whence the plug may then be withdrawn by turning it.

As shown in Fig. l, the parts of the bung are in the relaxed condition, in which it may` ,be freely inserted into a bung-hole A preparatory to tightening it in place. with the keyD by inserting the end of its stem into theplug-socket c, whereby the stemsocket is brought over the plug-stud b to steady the key, thestop-flange Z and lipl on the stem of which must coincidewith and enter the slot @inthe plug-flange d to permit the key to enter the plug-socket. By then turning the key toward the left the stopfl'ange Z engages with ,Qthe adjacent side of the flange-slot e `to turn or unscrew the plug C in the sleeve B', whereby the plate KE is,A

drawn toward the inner end of the sleeve to compress against it the ring F, with the eiect;

of expanding the ring toward its outer edge and binding it against the wall of the bunghole to seal the latter and tighten the bung in position.. To relax the bung preparatory to withdrawing it, the key is turned in the opposite direction (toward the right) tobring the iiangel against the adjacent side of the plug-fiange slote and turn the plug to screw it into, the sleeve B, thereby to separate the1 plate E from the ring F, and thus release the pressure against and relax `the latter, .when

the bung maybe easily withdrawn from the bung-holeby means of the key, since in thelast-described position of the key itslip l is gage with the to be withdrawn.

What I claim as new, and desire .tosecure by Letters Patent, is-

This j is donev 1. In a bung, the combination of an internally-threaded sleeve, an externally-threaded plug adj ustably screwing into said sleeve and provided on its inner end with a tubular ex- Atensi'onm'having a slot, a sealing-ring on. the

sleeve, and a compression-plate having eX- jtending from ita' neck terminating in a head confined in said tubular extension for removably connecting said plate with said plug to compress the ring between the plate and sleeve by turning the plug, substantially as described. Y f V `2. Ina bung, the combination of an internally-threaded sleeve, an externally-threaded plug adj ustably screwing into said sleeve and having a slotted.key-socketY in lits outer end and providedon its innerend witha tubular extension .having a slot, a-sealing-ring-oaths` 85 sleeve, and a compression-plate having exn tending from it a neck terminating in ahead confined in said tubular extension for removably connecting said plate withsaidtplug-to compress. the ring between` the plate and sleeve by turning the plug, substantial-ly as described. l

`3. In a bung, thecombination `cian-interenally-threaded sleeve, anexternally-threaded plug adjustably screwing :into said-'sleeve and having a slotted key-socket initsouter end and provided on its inner endV with atu-bular extension flanged at its lower end'and-con-` taining a T-shaped slot,.a sealing-ring on 4the lbase of the sleeve, and a `compression-plate having extending from ita neck 'terminating in a head adapted to enter said tubular extension .through said slot .for connecting said plate with s aid plug to compress the ring between the plate andV sleeve by turning the plug,.subs t.antially as described'.

4; In a bung, the'combination of al1-inten nallythreaded-sleeve, an externally-threaded plug adjustably screwing into said sleeveand provided on its outer end with a slotted'ange forming a key-socket having an 'extension under the flange forming a recess extending from one side of the flange-slot, a sealingring on the base of the sleeve, anda compressionplate connected with said plug to compress the ring between the plate and sleeve by turning the plug, substantially as .escri'bed.V v

5. In a bung, the combination of an .in-ternally-threaded sleeve havingla rounded base, an externally-th readed plug adj ustablyscrewingv into said sleeve and provided on -its inner end with va tubular extension having a slot, a sealing-rin g on and con-forming to the shape of the bottom of the sleeve, and "a compression-plate having extending from -it-a neck terminating ina headcontined infsaid tubular extension for connecting said plate with said plug to compress the ring between the plate'and sleeve by turning the plug, .su-b- Vstantiallyas described. Y

6.- A bung comprising, in combination, an

1 internallythreaded sleeve, an vexternallythreaded plug adj ustably screwing into said v l sleeve and having .on its youter enda central IOO IIO

said tubular extension for removably connecting said plate with said plug to compress the ring between the plate and sleeve by turning the plug, substantially as described.

CHRISTOPHER STRASSHEIM.

In'presence off F. J. MARTIN, M. J. FRosr. 

